mirror of
https://github.com/torvalds/linux.git
synced 2026-04-29 12:02:35 -04:00
c2b66cafdf
Shorten the tables by removing row numbers in comments, allowing for
later insertion of rows with minimal diffs.
All changes have been generated by the following script.
import io
import re
import sys
def process_table(fname, data):
if fname.endswith('hist-v4l2.rst'):
data = re.sub(u'\n{1,2}\t( ?) -( ?) ?', u'\n\t\\1 -\\2', data, flags = re.MULTILINE)
data = re.sub(u'\n(\t| )- \.\. row [0-9]+\n\t ?-( ?) ?', u'\\1* -\\2', data, flags = re.MULTILINE)
else:
data = re.sub(u'\n{1,2} -( ?) ?', u'\n -\\1', data, flags = re.MULTILINE)
data = re.sub(u'(\n?)(\n\n - \.\. row 1\n)', u'\n\\2', data, flags = re.MULTILINE)
data = re.sub(u'\n - \.\. row [0-9]+\n -( ?) ?', u' * -\\1', data, flags = re.MULTILINE)
data = re.sub(u'\n - \.\. row [0-9]+\n \.\. (_[A-Z0-9_`-]*:)', u'\n - .. \\1', data, flags = re.MULTILINE)
data = re.sub(u'\n - \.\. (_[A-Z0-9_`-]*:)\n -', u' * .. \\1\n\n -', data, flags = re.MULTILINE)
data = re.sub(u'^ - ', u' -', data, flags = re.MULTILINE)
data = re.sub(u'^(\t{1,2}) ', u'\\1', data, flags = re.MULTILINE)
return data
def process_file(fname, data):
buf = io.StringIO(data)
output = ''
in_table = False
table_separator = 0
for line in buf.readlines():
if line.find('.. flat-table::') != -1:
in_table = True
table = ''
elif in_table and not re.match('^[\t\n]|( )', line):
in_table = False
output += process_table(fname, table)
if in_table:
table += line
else:
output += line
if in_table:
in_table = False
output += process_table(fname, table)
return output
fname = sys.argv[1]
data = file(fname, 'rb').read().decode('utf-8')
data = process_file(fname, data)
file(fname, 'wb').write(data.encode('utf-8'))
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
152 lines
2.5 KiB
ReStructuredText
152 lines
2.5 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _V4L2-PIX-FMT-Y41P:
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**************************
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V4L2_PIX_FMT_Y41P ('Y41P')
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**************************
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Format with ¼ horizontal chroma resolution, also known as YUV 4:1:1
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Description
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===========
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In this format each 12 bytes is eight pixels. In the twelve bytes are
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two CbCr pairs and eight Y's. The first CbCr pair goes with the first
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four Y's, and the second CbCr pair goes with the other four Y's. The Cb
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and Cr components have one fourth the horizontal resolution of the Y
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component.
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Do not confuse this format with
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:ref:`V4L2_PIX_FMT_YUV411P <V4L2-PIX-FMT-YUV411P>`. Y41P is derived
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from "YUV 4:1:1 *packed*", while YUV411P stands for "YUV 4:1:1
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*planar*".
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**Byte Order.**
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Each cell is one byte.
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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* - start + 0:
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- Cb\ :sub:`00`
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- Y'\ :sub:`00`
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- Cr\ :sub:`00`
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- Y'\ :sub:`01`
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- Cb\ :sub:`01`
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- Y'\ :sub:`02`
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- Cr\ :sub:`01`
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- Y'\ :sub:`03`
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- Y'\ :sub:`04`
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- Y'\ :sub:`05`
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- Y'\ :sub:`06`
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- Y'\ :sub:`07`
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* - start + 12:
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- Cb\ :sub:`10`
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- Y'\ :sub:`10`
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- Cr\ :sub:`10`
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- Y'\ :sub:`11`
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- Cb\ :sub:`11`
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- Y'\ :sub:`12`
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- Cr\ :sub:`11`
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- Y'\ :sub:`13`
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- Y'\ :sub:`14`
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- Y'\ :sub:`15`
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- Y'\ :sub:`16`
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- Y'\ :sub:`17`
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* - start + 24:
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- Cb\ :sub:`20`
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- Y'\ :sub:`20`
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- Cr\ :sub:`20`
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- Y'\ :sub:`21`
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- Cb\ :sub:`21`
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- Y'\ :sub:`22`
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- Cr\ :sub:`21`
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- Y'\ :sub:`23`
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- Y'\ :sub:`24`
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- Y'\ :sub:`25`
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- Y'\ :sub:`26`
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- Y'\ :sub:`27`
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* - start + 36:
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- Cb\ :sub:`30`
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- Y'\ :sub:`30`
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- Cr\ :sub:`30`
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- Y'\ :sub:`31`
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- Cb\ :sub:`31`
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- Y'\ :sub:`32`
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- Cr\ :sub:`31`
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- Y'\ :sub:`33`
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- Y'\ :sub:`34`
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- Y'\ :sub:`35`
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- Y'\ :sub:`36`
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- Y'\ :sub:`37`
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**Color Sample Location..**
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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* -
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- 0
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- 1
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-
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- 2
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- 3
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- 4
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- 5
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-
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- 6
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- 7
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* - 0
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- Y
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- Y
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- C
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- Y
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- Y
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- Y
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- Y
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- C
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- Y
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- Y
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* - 1
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- Y
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- Y
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- C
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- Y
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- Y
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- Y
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- Y
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- C
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- Y
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- Y
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* - 2
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- Y
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- Y
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- C
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- Y
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- Y
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- Y
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- Y
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- C
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- Y
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- Y
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* - 3
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- Y
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- Y
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- C
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- Y
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- Y
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- Y
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- Y
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- C
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- Y
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- Y
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